HighGHSA-j84w-jfhq-vhvjCVE-2026-102675

Electron: File and HTTP protocol handlers allow cross-origin reads without corsEnabled

Published 29 Sept 2026 · Updated 29 Sept 2026

Affected packages

electronnpm

Affected: <41.10.6
Fixed in: 41.10.6

Update to the fixed version for your release line, for example:npm install electron@41.10.6

electronnpm

Affected: >=42.0.0-alpha.1 <42.9.2
Fixed in: 42.9.2

Update to the fixed version for your release line, for example:npm install electron@42.9.2

electronnpm

Affected: >=43.0.0-alpha.1 <43.4.1
Fixed in: 43.4.1

Update to the fixed version for your release line, for example:npm install electron@43.4.1

electronnpm

Affected: >=44.0.0-alpha.1 <44.0.0-beta.5
Fixed in: 44.0.0-beta.5

Update to the fixed version for your release line, for example:npm install electron@44.0.0-beta.5

Details

Impact

Responses served through protocol.registerFileProtocol or protocol.registerHttpProtocol for a custom scheme registered with supportFetchAPI: true but without corsEnabled: true could be read cross-origin by web content. This completes the fix for CVE-2026-70604.

Apps are only affected if they register such a scheme, serve it through one of those handlers, and load untrusted content. Apps that set corsEnabled: true, or that do not load untrusted content, are not affected.

Workarounds

Set corsEnabled: true on the scheme, or do not load untrusted content in windows that can reach it.

Fixed Versions

44.0.0-beta.5
43.4.1
42.9.2
41.10.6

For more information

If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.